Hi guys, I'm Cuong 👋.

No.	Problem Title	Organization	Solution	Algorithm
1	A. Numbers	Codeforces	1.cpp	math
2	A. Fashion in Berland	Codeforces	2.cpp	logic
3	A. Night at the Museum	Codeforces	3.cpp	logic
4	A. Bear and Game	Codeforces	4.cpp	logic
5	A. Arrays	Codeforces	5.cpp	sort
6	A. Vitaly and Strings	Codeforces	6.cpp	logic
7	B. African Crossword	Codeforces	7.cpp	logic
8	B. Big Segment	Codeforces	8.cpp	logic
9	B. Passwords	Codeforces	9.cpp	math
10	A. Dress'em in Vests!	Codeforces	10.cpp	logic
11	A. Sereja and Dima	Codeforces	11.cpp	logic
12	B. Approximating a Constant Range	Codeforces	12.cpp	2-pointer
13	B. Array	Codeforces	13.cpp	2-pointer
14	B. Balls Game	Codeforces	14.cpp	2-pointer
15	B. Books	Codeforces	15.cpp	2-pointer
16	B. George and Round	Codeforces	16.cpp	2-pointer
17	C. Alice, Bob and Chocolate	Codeforces	17.cpp	2-pointer
18	A. Business trip	Codeforces	18.cpp	sort
19	A. Chores	Codeforces	19.cpp	sort
20	A. GukiZ and Contest	Codeforces	20.cpp	sort
21	A. Towers	Codeforces	21.cpp	logic
22	B. Devu, the Dumb Guy	Codeforces	22.cpp	sort
23	B. Eight Point Sets	Codeforces	23.cpp	sort, logic
24	B. Pasha and Tea	Codeforces	24.cpp	sort, logic
25	B. Sort the Array	Codeforces	25.cpp	sort, logic, 2-pointer
26	Compilers and parsers	Codechef	26.cpp	greedy
27	MMASS - Mass of Molecule	SPOJ	27.cpp	stack
28	STPAR - Street Parade	SPOJ	28.cpp	stack
29	ONP - Transform the Expression	SPOJ	29.cpp	stack
30	10935 - Throwing cards away I	UVA	30.cpp	queue
31	12207 - That is Your Queue	UVA	31.cpp	queue
32	10901 - Ferry Loading III	UVA	32.cpp	queue
33	UCV2013H - Slick	SPOJ	33.py	bfs
34	MAKEMAZE - VALIDATE THE MAZE	SPOJ	34.py	bfs
35	Guilty Prince	LightOJ	35.py	bfs
36	Dhoom 4	HackerEarth	36.py	bfs
37	Breadth First Search: Shortest Reach	HackerRank	37.py	bfs
38	C. Ice Cave	Codeforces	38.py	bfs
39	Valid Parentheses	LeetCode	39.py	logic
40	C. Kefa and Park	Codeforces	40.py	bfs
41	1610 - Dudu Service Maker	UVA	41.py	dfs
42	D. Lakes in Berland	Codeforces	42.py	dfs
43	CAM5 - prayatna PR	SPOJ	43.cpp	dfs
44	BENEFACT - The Benefactor	SPOJ	44.py	dfs
45	LASTSHOT - THE LAST SHOT	SPOJ	45.go	dfs
46	10954 - Add All	UVA	46.py	heap
47	11995 - I Can Guess the Data Structure!	UVA	47.py	heap, stack,queue
48	Monk and Multiplication	HackerEarth	48.py	heap
49	QHEAP1	HackerRank	49.py	heap
50	Restaurant Rating	CodeChef	50.py	heap
51	Roy and Trending Topics	HackerEarth	51.py	heap
52	Two Sum	LeetCode	52.py	logic
53	Ransom Note	LeetCode	53.py	logic
54	Best Time to Buy and Sell Stock II	LeetCode	54.py	logic
55	Palindrome Number	LeetCode	55.py	logic
56	Roman to Integer	LeetCode	56.py	logic
57	Longest Common Prefix	LeetCode	57.py	sort
58	Summary Ranges	LeetCode	58.py	logic
59	Equal Row and Column Pairs	LeetCode	59.py	hash
60	Minimum Absolute Difference in BST	LeetCode	60.py	dfs
61	Maximum Level Sum of a Binary Tree	LeetCode	61.py	dfs